tests/qemu-iotests/267

   1 #!/usr/bin/env bash
   2 #
   3 # Test which nodes are involved in internal snapshots
   4 #
   5 # Copyright (C) 2019 Red Hat, Inc.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 # creator
  22 owner=kwolf@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 status=1        # failure is the default!
  28
  29 _cleanup()
  30 {
  31     _cleanup_test_img
  32     rm -f "$SOCK_DIR/nbd"
  33 }
  34 trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36 # get standard environment, filters and checks
  37 . ./common.rc
  38 . ./common.filter
  39
  40 _supported_fmt qcow2
  41 _supported_proto file
  42 _supported_os Linux
  43
  44 # Internal snapshots are (currently) impossible with refcount_bits=1
  45 _unsupported_imgopts 'refcount_bits=1[^0-9]'
  46
  47 do_run_qemu()
  48 {
  49     echo Testing: "$@"
  50     (
  51         if ! test -t 0; then
  52             while read cmd; do
  53                 echo $cmd
  54             done
  55         fi
  56         echo quit
  57     ) | $QEMU -nographic -monitor stdio -nodefaults "$@"
  58     echo
  59 }
  60
  61 run_qemu()
  62 {
  63     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp |
  64         _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size
  65 }
  66
  67 size=128M
  68
  69 run_test()
  70 {
  71     _make_test_img $size
  72     printf "savevm snap0\ninfo snapshots\nloadvm snap0\n" | run_qemu "$@" | _filter_date
  73 }
  74
  75
  76 echo
  77 echo "=== No block devices at all ==="
  78 echo
  79
  80 run_test
  81
  82 echo
  83 echo "=== -drive if=none ==="
  84 echo
  85
  86 run_test -drive driver=file,file="$TEST_IMG",if=none
  87 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none
  88 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0
  89
  90 echo
  91 echo "=== -drive if=virtio ==="
  92 echo
  93
  94 run_test -drive driver=file,file="$TEST_IMG",if=virtio
  95 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio
  96
  97 echo
  98 echo "=== Simple -blockdev ==="
  99 echo
 100
 101 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file
 102 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 103          -blockdev driver=$IMGFMT,file=file,node-name=fmt
 104 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 105          -blockdev driver=raw,file=file,node-name=raw \
 106          -blockdev driver=$IMGFMT,file=raw,node-name=fmt
 107
 108 echo
 109 echo "=== -blockdev with a filter on top ==="
 110 echo
 111
 112 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 113          -blockdev driver=$IMGFMT,file=file,node-name=fmt \
 114          -blockdev driver=copy-on-read,file=fmt,node-name=filter
 115
 116 echo
 117 echo "=== -blockdev with a backing file ==="
 118 echo
 119
 120 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 121
 122 IMGOPTS="backing_file=$TEST_IMG.base" \
 123 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 124          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 125          -blockdev driver=$IMGFMT,file=file,backing=backing-file,node-name=fmt
 126
 127 IMGOPTS="backing_file=$TEST_IMG.base" \
 128 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 129          -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
 130          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 131          -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt
 132
 133 # A snapshot should be present on the overlay, but not the backing file
 134 echo Internal snapshots on overlay:
 135 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
 136
 137 echo Internal snapshots on backing file:
 138 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
 139
 140 echo
 141 echo "=== -blockdev with NBD server on the backing file ==="
 142 echo
 143
 144 IMGOPTS="backing_file=$TEST_IMG.base" _make_test_img $size
 145 cat <<EOF |
 146 nbd_server_start unix:$SOCK_DIR/nbd
 147 nbd_server_add -w backing-fmt
 148 savevm snap0
 149 info snapshots
 150 loadvm snap0
 151 EOF
 152 run_qemu -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 153          -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
 154          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 155          -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt |
 156          _filter_date
 157
 158 # This time, a snapshot should be created on both files
 159 echo Internal snapshots on overlay:
 160 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
 161
 162 echo Internal snapshots on backing file:
 163 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
 164
 165 # success, all done
 166 echo "*** done"
 167 rm -f $seq.full
 168 status=0